What does RAMB mean in NHS letter?

[BeesForHoney]

Please can anyone help me with this NHS acronym?

This shows on a letter to my GP:
Clinical information: RAMB

No point in calling GP as they say my breathlessness and pain is normal but x-ray shows hyperinflated lungs, CT scan (with contrast) showed something at the bottom of left lung and having a higher definition scan later today.

Have also been told that it's over a year waiting list for a respiratory outpatients appointment.

I think it's possibly the clinic code: Ambulatory Respiratory. Someone else may be along with more information

Thank you Basil, yes, that makes sense - they said I don't have COPD or asthma (never smoked)- hopefully the next scan will be able show what's wrong.

The doctor who called said I'm recorded as an inpatient still.